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1 <!DOCTYPE html> | 1 <script src="../../resources/testharness.js"></script> |
2 <html> | 2 <script src="../../resources/testharnessreport.js"></script> |
3 <head> | |
4 <script src="../../resources/js-test.js"></script> | |
5 </head> | |
6 <body> | 3 <body> |
7 <script> | 4 <script> |
8 description("Test the handling of non-integer source coordinates in getImageData ()."); | 5 test(function(t) { |
9 | 6 |
10 ctx = document.createElement('canvas').getContext('2d'); | 7 ctx = document.createElement('canvas').getContext('2d'); |
Justin Novosad
2017/02/03 18:07:18
indent
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11 | 8 |
12 function dimensionsShouldBe(sx, sy, sw, sh, width, height) | 9 function testDimensions(sx, sy, sw, sh, width, height) |
13 { | 10 { |
14 imageData = ctx.getImageData(sx, sy, sw, sh); | 11 imageData = ctx.getImageData(sx, sy, sw, sh); |
15 debug('getImageData(' + sx + ', ' + sy + ', ' + sw + ', ' + sh + ')'); | 12 assert_equals(imageData.width, width); |
16 shouldBe('imageData.width', width + ''); | 13 assert_equals(imageData.height, height); |
17 shouldBe('imageData.height', height + ''); | |
18 } | 14 } |
19 | 15 |
20 // Basic integer values | 16 // Basic integer values |
21 dimensionsShouldBe( 0, 0, 20, 10, 20, 10); | 17 testDimensions( 0, 0, 20, 10, 20, 10); |
22 | 18 |
23 // Source point is not an integer | 19 // Source point is not an integer |
24 dimensionsShouldBe( .1, .2, 20, 10, 21, 11); | 20 testDimensions( .1, .2, 20, 10, 21, 11); |
25 dimensionsShouldBe( .9, .8, 20, 10, 21, 11); | 21 testDimensions( .9, .8, 20, 10, 21, 11); |
26 | 22 |
27 // Size is not an integer | 23 // Size is not an integer |
28 dimensionsShouldBe( 0, 0, 19.9, 9.9, 20, 10); | 24 testDimensions( 0, 0, 19.9, 9.9, 20, 10); |
29 dimensionsShouldBe( 0, 0, 19.1, 9.1, 20, 10); | 25 testDimensions( 0, 0, 19.1, 9.1, 20, 10); |
30 | 26 |
31 // Width straddles a pixel boundary | 27 // Width straddles a pixel boundary |
32 dimensionsShouldBe( .9, 0, .2, 10, 2, 10); | 28 testDimensions( .9, 0, .2, 10, 2, 10); |
33 | 29 |
34 // Basic integer negative values | 30 // Basic integer negative values |
35 dimensionsShouldBe( -1, -1, 20, 10, 20, 10); | 31 testDimensions( -1, -1, 20, 10, 20, 10); |
36 | 32 |
37 // Non-integer negative values | 33 // Non-integer negative values |
38 dimensionsShouldBe(-1.1, 0, 20, 10, 21, 10); | 34 testDimensions(-1.1, 0, 20, 10, 21, 10); |
39 dimensionsShouldBe(-1.9, 0, 20, 10, 21, 10); | 35 testDimensions(-1.9, 0, 20, 10, 21, 10); |
36 | |
37 }, 'Test the handling of non-integer source coordinates in getImageData().'); | |
40 </script> | 38 </script> |
41 </body> | 39 </body> |
42 </html> | |
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